was well fortified with a . .38 caliber handgun, 12 gauge shotgun and bushmaster, the same as in the connecticut shooting. two firefighters were killed and two others hospitalized. spangler, police say, killed himself. they revealed human remains were found in spangler's burned house and authorities suspect they belong to his missing sister. >> motive is always the burning question and we will never know what was going through his mind. >> reporter: police are investigating whether the death of his 91-year-old mother in october and donation she made to the fire department could help explain the motive for his christmas eve shootings. >>> former president w.h. bush remains in the hospital this morning where he spent christmas wes his wife, barbara bush as well as family members. the former first president suffered setbacks and why they could not release him as hoped to do originally. the former 88-year-old president was hospitalized for what was initially described as a bronchitis type cough. in the weeks since, he's become weak and developed a fever and cautiously are optimistic he will fully re